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Example 8: Convert 366 days into weeks and days.
52
Solution: Since 7 days = 1 week 7 366
366 days = (366 ÷ 7) weeks 35
16
Quotient = 52 weeks, Remainder = 2 days 14

Thus, 366 days = 52 weeks 2 days 2

Knowledge Desk

A leap year has 366 days. Julius Caesar introduced the first calendar leap year in 46 B.C. The
Earth takes exactly 365 days, 5 hours, 48 minutes and 45 seconds to move around the Sun.

Practice Time 10A

1. Convert the following.

(a) 9 minutes into seconds (b) 12 minutes 54 seconds into seconds

(c) 3 hours 25 minutes 16 seconds into seconds

(d) 14 hours into minutes (e) 9 hours 54 minutes into minutes

(f) 7 days into hours (g) 8 days 19 hours into hours

(h) 7 weeks 3 days into days (i) 3 years into days

(j) 10 years into months (k) 5 years 10 months into months

2. Convert the following into minutes and seconds.
(a) 1318 seconds (b) 3165 seconds

3. Convert the following into hours and minutes.

(a) 238 minutes (b) 498 minutes (c) 1032 minutes (d) 3024 minutes
4. Convert the following into days and hours.

(a) 57 hours (b) 537 hours (c) 953 hours (d) 1810 hours
5. Convert the following into weeks and days.

(a) 330 days (b) 438 days

OPERATIONS ON TIME UNITS

Addition and Subtraction of Measures of Time

We can perform operations on time units as we did for length, weight and for capacity.

To perform addition or subtraction of time, we arrange the same units of time in same
columns and then add or subtract.

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